// Copyright (C) Kumo inc. and its affiliates.
// Author: Jeff.li lijippy@163.com
// All rights reserved.
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU Affero General Public License as published
// by the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
// GNU Affero General Public License for more details.
//
// You should have received a copy of the GNU Affero General Public License
// along with this program.  If not, see <https://www.gnu.org/licenses/>.
//


#include <pollux/common/hash_bit_range.h>
#include <pollux/testing/vector/vector_test_base.h>

using namespace kumo;
using namespace kumo::pollux;
using namespace kumo::pollux::exec;

class HashRangeBitTest : public pollux::VectorBuilder,
                         public testing::Test {
 protected:
  static void SetUpTestCase() {
    memory::MemoryManager::testingSetInstance({});
  }
};

TEST_F(HashRangeBitTest, hashBitRange) {
  HashBitRange bitRange(29, 31);
  ASSERT_EQ(29, bitRange.begin());
  ASSERT_EQ(4, bitRange.numPartitions());
  ASSERT_EQ(2, bitRange.numBits());
  ASSERT_EQ(31, bitRange.end());
  ASSERT_EQ(bitRange, bitRange);

  HashBitRange defaultRange;
  ASSERT_EQ(0, defaultRange.begin());
  ASSERT_EQ(1, defaultRange.numPartitions());
  ASSERT_EQ(0, defaultRange.numBits());
  ASSERT_EQ(0, defaultRange.end());
  ASSERT_EQ(defaultRange, defaultRange);
  ASSERT_NE(defaultRange, bitRange);

  // Error test cases.
  HashBitRange validRange(63, 64);
  ASSERT_ANY_THROW(HashBitRange(63, 65));
  ASSERT_ANY_THROW(HashBitRange(65, 65));
}
